Smoke and flames from the Santa Barbara High School building brought out fire officials, who are officially labeling the cause as arson.
Fire investigators say it was intentionally set in a field house storage building near the stadium.
Smoke and flames were seen about 3:30 bringing out a full fire response with multiple engines.
Officials also say this is the third vandalism related problem on the campus in recent days.
A full investigation with fire fighters and school district officials is underway to find out who was in the area prior to the fire.
Damage was confined to one room and no one was hurt.
